Antiskidding attachment for pneumatic tires.



PATENTED JUNE 27, 1905.

W. J. SMITH. ANTISKIDDING ATTACHMENT FOR PNEUMATIC TIRES.

APPLIOATION FILED FEB. 28. 1905.

am A @W PATENT Patented June 27, 1 905.

WILLIAM J. SMITH, OF CANASTOTA, NEW YORK.

ANTISKIDDING ATTACHMENT FOR PNEUMATIC TIRES.

SPECIFICATION forming part of Letters Patent No. 793,618, dated June 27,1905.

Application filed February 28, 1905. Serial No. 247,716.

T0 a/ZZ, whom, it may concern.-

Be it known that I. WILLIAM J. SMITH, a citizen of the United States,residing at Ganastota, in the county of Madison and State of New York,have invented certain new and useful Improvements in AntiskiddingAttachments for Pneumatic Tires; and I do declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to theletters of reference marked thereon, which form a part of thisspecification.

This invention relates to an antislipping armor for tires, andparticularly to a structo re adapted for application to an inflatedtire.

The invention has for an object to provide an improved construction ofattaching means by which the chain mat or armor may be applied to thetire and retained in position by an adjustable cable disposed atopposite sides of the tire and provided with tu rnbuckles at differentpoints in its length.

Another object of the inventionis to provide an improved constructionand arrangement of this chain armor by which the chains extenddiagonally to the circumference of the Wheel as distinguished from achain extending directly across the wheel at a right angle to itscircumference. This arrangement, which has been heretofore used, isfound objectionable, as the pull and resistance upon the chain causes itto roll or turn upon the surface of the tire and prevents its being heldrigidly in position.

Other and further objects and advantages of the invention will behereinafter set forth and the novel features thereof defined in theappended claims.

In the drawings, Figure 1 is a side elevation of a portion of a wheelwith the invention applied thereto. Fig. 2 is a plan view of a sectionof the chain armor removed. Fig. 3is across-section on line 3 3 ofFig. 1. Fig. 4 is an edge view of the twisted link. Fig. 5 is a planview of this link, and Fig. 6 is a side elevation of a modifiedapplication of the invention.

Like letters of reference refer to like parts in the several figures ofthe drawings.

The letter A designates the wheel, which may be of any desiredconstruction and is provided upon its rim or felly with a suitablepneumatic, elastic, or other tire A The preferred form of chain armor ormat,.as shown in Figs. 1, 2, and 3, comprises the chain-sections B andB, extending at an angle to each other and each disposed diagonally to acentral line extending circumferentially of the tire, so that the draftupon these chains is received in part along their length. The chains maybe connected together at their intersection by means of a suitable ringor eye B These chain-sections are arranged in series and connectedtogether by rings B at each end, which rings are connected laterally bya chain-section 13* and also provided with a link and chain section Bfor attachment to the holding cables or strands C. For the purpose ofmaking this attachment one of the chains B may be provided with an eyeB, through which the cable is threaded, and the opposite chain 13',formed with a hook B thereon to engage the cable at that side of thetire. These parts are duplicated in series, and the length of chain ineach section may be varied as found most desirable or convenient in use.In Fig. 6 a modified application of this chain is presented, wherein acontinuous length of chain B is used and extends diagonally back andforth across the surface of the tire, thus presenting a series ofdiagonal chains extending in opposite directions, but not intersecting,as in Fig. 2. This chain Bias shown in Fig. 6, is provided with eyes orhooks B' for attachment to the holding-cable O in any desired manner.

The links of the chain used in the armor may be of any desiredconstruction or arrangement, but'are preferably flattened, as shown at Din Figs. I and 5, and then twisted laterally, so as to present agripping edge D upon the surface of the ice or other slippery materialwith which this armor cooperates.

The holding-cables (J are preferably formed in sections, as shown inFig. 1, in order that the adjustment for retaining the armor in positionmay be equal atdifferentpoints throughout the wheel, and for the purposeof efiecting this adjustment the opposite ends of each cable areprovided with any desired form of turnbuckle. For instance, a threadedbolt, as shown at U, is secured to the opposite ends of adjacent cablesand connected by the buckle C, as shown in Figs. 1 and 2. These cablesbeing disposed at the opposite sides of the tire, as shown in Fig. 3,when drawn 7 tightly will grip and retain the armor in position andadapt the armor for application to a tire when fully inflated. Thearrangement of the chain armor carried by these cables permits one ofthe cables to be always retained upon the armor, while the armor may beattached to the other cable without delay by means of the hooks Bespecially adapted for that purpose.

It will be seen in the use of the invention that the rolling and pullingof the chain armor, which extends at a right angle to the periphery ofthe tire, is entirely prevented by the diagonal disposition of the armorin the present instance, and this armor is rigidly and firmly secured tothe tire in the manner described.

It will be obvious that changes may be made in the details ofconstruction and configuration without departing from the details of theinvent-ion as defined by the appended claims.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. An armor for tires comprising a chain mat extending circumferentiallyof the tire about the tread-surface thereof, cable-sections,turnbuckles, threaded eyebolts mount ed in the opposite ends of saidturnbuckles, said cable-sections connected to the eyes of said bolts,and hooks connecting said chain mat with the cable-sections, as setforth.

2. An armor for tires comprising a chain mat composed of flattened linkstwisted laterally to present a side edge thereof upon the periphery ofthe tire, as set forth.

In testimony whereof I hereunto aflix my signature in presence of twowitnesses.

WILLIAM J. SMITH.

Witnesses:

CHARLES W. VVoRDEN, R. R. BEMISS.

